Community Learn Tools Library Leisure
search
English
Home > Backend Development > PHP Tutorial > 怎么批量替换某一字段的数据前缀

怎么批量替换某一字段的数据前缀

WBOY
Release： 2016-06-13 12:20:07
Original
1246 people have browsed it

如何批量替换某一字段的数据前缀？
我现在文件名都是绝对路径。
我想把文件名改成相对路径，但是数据很多，一个个改很麻烦，有没有办法批量替换。

<br />原文件名：http://www.baidu.com/upload/1422.jpg<br />改成这样：/upload/1422.jpg<br />
Copy after login

------解决思路----------------------
update tbl_name set 路径=replace(路径, 'http://www.baidu.com/', '/')
Copy after login

------解决思路----------------------
使用mysql replace可实现

比如你要将表 tb1里面的 f1字段的abc替换为def
UPDATE tb1 SET f1=REPLACE(f1, 'abc', 'def'); 

<br />update `tablename` set field_name=replace(`field_name`, 'http://www.baidu.com/', '');<br />
Copy after login


Related labels：
name nbsp replace update
source：php.cn
Previous article：求高效率算法，合并多个多维数组值 Next article：PHP的一个全局变量如若引用了一个局部变量的地址
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Latest Articles by Author
Latest Issues
function_exists() cannot determine the custom function Function test () {return true;} if (function_exists ('test')) {echo "test is function...
From 2024-04-29 11:01:01
0
2
1429
There is no output in the parent window document.onclick = function(){ window.opener.document.write('I am the output of the child ...
From 2024-04-18 23:52:34
0
1
1284
PX automatic conversion to REM error  <style>html {   font-size: calc(100vw / 3.75);      }...
From 2024-04-16 09:34:16
0
0
4687
Related Topics
More>
Popular Recommendations
Popular Tutorials
More>
Related Tutorials
Popular Recommendations
Latest courses
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template